Description of problem: On different notebooks with Intel HDA/Realtek 883 and ATI IXP audio, a loud click is audible when switching from mains to battery power. Version-Release number of selected component (if applicable): Around kernel-2.6.27.8-144.fc10.x86_64 and later. How reproducible: Most times when pulling the plug. Actual results: Annoying click. Expected results: No click.
Seems to be fixed in current kernels with recent ALSA drivers.